QuickOPC User's Guide and Reference
IsNull Property (_DAPropertyDescriptor)



OpcLabs.EasyOpcClassicCore Assembly > OpcLabs.EasyOpc.DataAccess.ComTypes Namespace > _DAPropertyDescriptor Interface : IsNull Property
Determines whether the property descriptor is null, i.e. specifies neither property ID.
Syntax
'Declaration
 

ReadOnly Property IsNull As Boolean
'Usage
 

Dim instance As _DAPropertyDescriptor
Dim value As Boolean
 
value = instance.IsNull
bool IsNull {get;}
property bool IsNull {
   bool get();
}
Requirements

Target Platforms: .NET Framework: Windows 10 (selected versions), Windows 11 (selected versions), Windows Server 2016, Windows Server 2022; .NET: Linux, macOS, Microsoft Windows

See Also

Reference

_DAPropertyDescriptor Interface
_DAPropertyDescriptor Members

 

 

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